import { LanguageModelV1StreamPart } from "@ai-sdk/provider";
export declare enum AssistantStreamChunkType {
    TextDelta = "0",
    Data = "2",
    Error = "3",
    ToolCall = "9",
    ToolCallResult = "a",
    ToolCallBegin = "b",
    ToolCallDelta = "c",
    Finish = "d",
    StepFinish = "e"
}
export type AssistantStreamChunk = {
    [AssistantStreamChunkType.TextDelta]: string;
    [AssistantStreamChunkType.Data]: unknown;
    [AssistantStreamChunkType.ToolCall]: {
        toolCallId: string;
        toolName: string;
        args: unknown;
    };
    [AssistantStreamChunkType.ToolCallBegin]: {
        toolCallId: string;
        toolName: string;
    };
    [AssistantStreamChunkType.ToolCallDelta]: {
        toolCallId: string;
        argsTextDelta: string;
    };
    [AssistantStreamChunkType.ToolCallResult]: {
        toolCallId: string;
        result: any;
    };
    [AssistantStreamChunkType.Error]: unknown;
    [AssistantStreamChunkType.StepFinish]: {
        finishReason: "stop" | "length" | "content-filter" | "tool-calls" | "error" | "other" | "unknown";
        usage: {
            promptTokens: number;
            completionTokens: number;
        };
        isContinued: boolean;
    };
    [AssistantStreamChunkType.Finish]: Omit<LanguageModelV1StreamPart & {
        type: "finish";
    }, "type">;
};
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